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Page Title:
Mounting surface for Panoramic Telescope M137. |
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|  MIL-M-48557A(AR)
4.9
Operability.
4.9.1 Torque. Use a standard torque measuring device with
Adapter 11747949 to test the running torque as specified in
3.10 at standard ambient temperature and operating
temperatures. Each knob shall be rotated a minimum of 3 turns
in each direction.
4.10
Interchangeabilitv.
4.10.1 Mounting surface for Panoramic Telescope M137. Each
mount shall be inspected for maximum fit condition using the
interchangeability gage 11747889. Any mount which does not
accept the interchangeability gage as stated in 3.11.2,
without using force, shall be rejected.
4.10.2 Mounting surface for Quadrant M17. Each mount shall
be inspected for maximum fit condition using the
interchangeability gage 11747844. Any mount which does not
accept the interchangeability gage as stated in 3.11.2, without
using force, shall be rejected.
4.10.3 Mounting surface of Mount M171. Each mount shall be
inspected for maximum fit condition using the
interchangeability gage 11747840. Any mount which does not
accept the interchangeability gage as stated in 3.11.3, without
using force, shall be rejected.
4.11
Illumination.
4.11.1 Pitcha nad cross level vials. The mount shall be
placed in a room having a controlled light source. The level
vial bubble and graduation lines shall be clearly discernible
to the observer in various light level ranging from standard
ambient light to dusk and then into darkness to meet the
requirements of 3.9.1.
4.11.2 Radiological contamination. Contamination test
shall be performed by wiping the telescope with filter paper
moistened in distilled water. The wiping shall be performed
with moderate finger pressure. The damp filter paper shall be
placed in a container with the proper portion of scintillation
liquid. The scintillating system used to measure contamination
must be calibrated and shall be within 10% of the known
standard value when counted to a total of 2000
disintegrations. The actual test for determining
contamination is performed by placing the container into the
scintillation system. The measured contamination shall be
within the limits specified in 3.7.5.1.
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